Ice-sawing machine.



C.-H. SGHUHMACHER.

1GB SAWNG MACHINE.

APPLIGATION FILED 111311.21. 1912.

1,047,308. Patented 1160.121912.

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COLUMBIA PLANOGRAPH co..wAsH|N0'roN. D. c.

G. H. SGHUHMAGHER.

`ICE SAWING MACHINE.

APPLIOATIQN FILED MAR. 21, 1912.

Patented Dec. 17, 1912.

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UNITED STATES PATENT OFFICE.

CARL I-I. SCHUI-IMACHER, 0F MYRTLE, MINNESOTA.

ICE-SAWING MACHINE.

Application filed March 21.

To all whom it may concern:

Be it known that I, CARL I-I. SCHUHMACHER, a citizen of the UnitedStates, residing at Myrtle, in the county of Freeborn a'nd State ofMinnesota, have invented certain new and useful Improvements inIce-Sawing Machines, of which the following is a specification,reference being had to the accom- This invention comprehends certain newand useful improvements in ice sawing machines, and the invention hasfor its primary object a simple and efficient construction of apparatusof this character which will propel itself on the surface of the ice andsaw the ice as the machine travels along.

The invention also has for its object a simple construction of machineof this character embodying a vertically adjustable frame designed tocarry the revolubl'e saw and a main wheeled frame, the two frames beingso connected together that the saw carrying frame may be raised andlowered at will and held either entirely inoperative, or at the requiredoperative elevation. And the invention also aims to generally improvethis class of devices and to render them more useful and commerciallydesirable.

With these and other objects in view, as will more fully appear as thedescription proceeds, the invention consists in certain constructions,arrangements and combinations of the parts that I shall hereinafterfully describe and claim.

For a full understanding of the invention, reference is to be had to thefollowing description and accompanying drawing in which,

Figure 1 is a top plan view of an ice sawing machine embodying theimprovements of my invention. Fig. 2 is a side elevation thereof withthe saw held in an inoperative position, and Fig. 3 is a transversesectional view, the section being taken upon the line 3-3, of Fig. 1.

Corresponding and like parts are referred to in the followingdescription and designated in the accompanying drawing by like referencecharacters.

The main frame-work of my improved ice sawing machine embodieslongitudinally extending sills 1 that are connected together by aplatform 2 upon which an internal combustion engine 3 or other motor ismounted. The front ends of the sills 1 are mounted Specification ofLetters Patent.

Patented Dec. 17,1012.

1912. Serial No. 685,262.

upon a transversely extending axle 4, upon which traveling wheels 5 aremounted. On the outer extremities of the axle 4, longitudinallyextending beams 6 are pivotally mounted, said beams being connected atone end by a cross bar 7 to form a. vertically adjustable saw carryingframe. The sills 1 of the main frame are provided near one end withlongitudinally extending guide straps 8 in which a crank rod 9 ismounted for movement, the ends cf said rod being journaled in bearings10 carried by the beams 6 and one of said ends being connected to a handlever 11 designed for adjustable locking connection with a quadrant 12.By this means, as will be evident, the saw carrying frame may be raisedand lowered and held at the required elevation.

The drive shaft 13 of the engine 3 is provided at one end with a pulley14 over which a belt 15 passes, said belt also passing around a pulley16 which is secured to a transverse shaft 17 journaled in the sawcarrying frame at one end of the beams 6.

18 designates the saw which is mounted on one end of the shaft 17.

Intermediate of its ends, the shaft 17 carries a bevel pinion 19 whichmeshes with a corresponding pinion 2O on the forward end of alongitudinally extending' shaft 21, said shaft being provided at itsrear end with a worm 22 which meshes with a worm gear 23 on atransversely extending shaft 24. This shaft 24 is journaled at its endsin bearings carried by the beams 6, and is provided with spur wheels 25that are designed to engage the surface of the ice so as to propel themachine while the saw is being rapidly rotated to cut the ice.

26 designates a caster wheel designed to support one end of the mainframe, and 27 designates adjustable gage wheels that are mounted at oneend of the main framework and at one end of the saw carrying frame.

From the foregoing description in connection with the accompanyingdrawing, the operation of my improved ice sawing machine will beapparent.

In the practical use of the machine, the saw carrying frame is loweredso that the spur wheels 25 engage the surface of the ice, and theoperation of the engine 3 will cause the shaft 17 to be rapidly rotatedso as to operate the saw, while at the same time, the shaft 21 and itsworm connection with the shaft 24, will turn the shaft 24 in a directionto propel the entire apparatus.

lVhle the accompanying drawing illustrates what I believe to be thepreferred embodiment of the invention, it is to be understood that theinvention is not limited thereto, but that various changes may be madein the construction, ararngement and proportions of the parts withoutdeparting fromr mounted on the main frame for rotating said shaft, apropelling shaft journaled on the adjustable frame and driven from thefirst named shaft, and spur Wheels carried by the second named shaft,for the purpose specified.

2. A machine of the character described, including a main frame, a sawcarrying frame having a vertically adjustable connection with the mainframe, a saw carried by said frame7 spur wheels also carried by said sawcarrying frame, and means for simultaneously operating the saw and forrotating said spur wheels.

3. A machine ofthe character described, including a main frame, a sawcarrying frame pivotally connected at one end to the main frame, a crankrod journaled on the saw carrying frame and having a sliding connectionwith the main frame, means for turning said rod, whereby to raise andlower the saw carrying frame, a transverse shaft j ournaled on the sawcarrying frame, a saw connected to said shaft, a longitudinally eX-tending shaft operatively connected to the first named shaft, anothertransverse shaft journaled on the saw frame and having a worm and gearconnection with the longitudinal shaft, means for rotating the sawcarrying shaft, and spur wheels carried by the i second named shaft.

In testimony whereof I hereunto affix my signature in the presence oftwo witnesses.

CARL I-I. SCI-IUHMACHER. Witnesses:

E. E. DUNN, WILL HANsoN.

Copies of th'is patent may be obtained for five cents each, byaddressing the Commissioner of Patents, Washington, D. C.

